Commanders To Personnel: Stay On Base

MANILA — Commanders at two large U.S. military installations in the Philippines Monday told military men and women to stay on the bases through the country's political crisis.

But military spokesmen said that the naval and air bases had not been put on alert and that there was no sense of danger. They said military personnel could leave base if they insisted, although they were strongly advised against it.

Several large American corporations were sufficiently concerned to order senior executives and their families to leave the country. According to a knowledgeable American businessman, the evacuations were intended to be temporary and were made over the executives' insistence that they were safe here.

A spokesman at the U.S. Embassy, Allan Croghan, said that Americans were being advised not to travel in the Philippines. But he also said the precaution was not rooted in fear of immediate danger.

Croghan estimated that there were 700,000 Americans in the country, including 15,500 members of the military at Clark and nearby at Subic Bay Naval Base.

The two bases are the largest American military installations of their kind outside the United States, and their protection has figured prominently in the Reagan administration's reactions to the turmoil here.

Officers aligned with the anti-Marcos rebels asserted that they now had ''free access'' to Clark

because of the defection to their side Monday by the commander of Philippine forces at the base. Technically, both bases are Philippine territory, and 700 Philippine officers and enlisted men belong to the base security force.

The aircraft carrier Enterprise left Subic Monday after weeks of maintenance and repairs. A spokesman at the naval base said that the departure had long been scheduled and was unrelated to political developments.

At Clark, 35 fighter planes were transferred to Kadena Air Base on the Japanese island of Okinawa, but U.S. Air Force officers said that this move also had been scheduled and had nothing to do with Philippine unrest.